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A random sample of 200 articles taken from a large batch of articles contains 15 defective articles. What is the estimate of the sample proportion of defective articles?

A random sample of 200 articles taken from a large batch of articles contains 15 defective articles. What is the estimate of the sample proportion of defective articles? Correct Answer 0.0186

Given

Number of defective bulbs = 15

Total sample = 200

Calculation

The estimation of sample proportion = Number of defective bulbs/(Total sample - Number of defective bulbs)

⇒ 15/(200 - 15)

⇒ 15/185

⇒ 0.0816

∴ The estimate of the sample proportion of defective articles is 0.0816

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